Isobaric Vapor-Liquid Equilibrium of Binary System 2-Cyclohexen-1-one and 1,2-Epoxycyclohexane

Green oxidation of cyclohexene using dioxygen as oxidizing agent is highly desirable because of its environmental compatibility and economic impact. Separation of its oxidation products depends on the reliable vapor-liquid equilibrium (VLE) data of relevant components, which are still lacking. The VLE data of binary system 1,2-epoxycyclohexane and 2-cyclohexen-1-one under ambient pressure were obtained using an improved VLE equipment EC-2 still in this work. The results showed that this binary system has no azeotropic point. Furthermore, the experimental VLE data were correlated with the Wilson thermodynamic model and the corresponding binaryinteraction parameters of the model were obtained. The results showed that the VLE data agreed well with themodel and passed the thermodynamic consistency test of Herrington.